SO₂ formation and peroxy radical isomerization in the atmospheric reaction of OH radicals with dimethyl disulfide
Berndt, Torsten; Chen, Jing; Møller, Kristian H.; Hyttinen, Noora; Prisle, Nønne L.; Tilgner, Andreas; Hoffmann, Erik H.; Herrmann, Hartmut; Kjaergaard, Henrik G. (2020-10-08)
Berndt, T., Chen, J., Møller, K. H., Hyttinen, N., Prisle, N. L., Tilgner, A., Hoffmann, E. H., Herrmann, H., & Kjaergaard, H. G. (2020). SO2 formation and peroxy radical isomerization in the atmospheric reaction of OH radicals with dimethyl disulfide. Chemical Communications, 56(88), 13634–13637. https://doi.org/10.1039/d0cc05783e
© The Royal Society of Chemistry 2020.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2020110989723
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Abstract
The atmospheric reaction of OH radicals with dimethyl disulfide, CH₃SSCH₃, proceeds primarily via OH addition forming CH₃S and CH₃SOH as reactive intermediates, and to a lesser extent via H-abstraction resulting in the peroxy radical CH₃SSCH₂OO in the presence of O₂. The latter undergoes a fast two-step isomerization process leading to HOOCH₂SSCHO. CH₃S and CH₃SOH are both converted to SO₂ and CH₃O₂ with near unity yields under atmospheric conditions.
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